Year Dollars 1997-01-01 41792 2003-01-01 312239 2004-01-01 1506446 2005-01-01 6338022 2006-01-01 1671255 2007-01-01 2972345 2008-01-01 5127872 2009-01-01 12993876 2010-01-01 16094859 2011-01-01 6277426 2012-01-01 5380865 2013-01-01 7608762 2014-01-01 3643181 2015-01-01 2246689